XML 111 R99.htm IDEA: XBRL DOCUMENT
v3.23.1

Summary of Operating Loss Carryforwards (Details) | Dec. 31, 2022 USD ($)
--- | ---
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards | $ 1,070,413
Year of Expiration 2023 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |
Year of Expiration 2024 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |
Year of Expiration 2025 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |
Year of Expiration 2026 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |
Year Of Expiration 2027 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |
Year of Expiration Thereafter up through 2037 [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards | 1,070,413
Indefinite Carryforwards [Member] |
Operating Loss Carryforwards [Line Items] |
Deferred Tax Assets, Operating Loss Carryforwards |

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. + References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OperatingLossCarryforwardsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpiration2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpiration2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpiration2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpiration2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpiration2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_YearOfExpirationThereafterUpThrough2037Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SNFCA_IndefiniteCarryforwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |